Barton Perreira's Sergei eyeglasses are handcrafted in Japan of matte black and clear acetate. Finished with a hand-engraved crosshatch design at the temples, this classic pair is titled after the Ukrainian ballet dancer of the same name. Handmade. Rounded square shape. Clear nose guards. Crosshatched silvertone metal detail at temples. Clear demo lenses. Replacement lenses suggested. 53mm eye size. 19mm bridge size. 150mm temple size. Available in Black/Crystal (clear). Acetate, metal. Made in Japan. Includes hard protective case and microfiber pouch.